Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1988-03-28
1989-03-14
Martin, Roland E.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
4301066, 430110, 430114, 430115, 528274, 528289, G03G 908, G03G 912
Patent
active
048123773
ABSTRACT:
Dry or liquid developers capable of forming high resolution electrostatographic images are made from finely divided toner particles comprising a fusible branched chain, polyester resin which contains 2,3-dihydro,1,3-dioxo-2-yl-1H-isoindole-ar(-yl or -diyl) groups derived, for example, from a 2,3-dihydro-1,3-dioxo-1H-isoindole-5-carboxylic acid. The toner compositions are brittle and can be ground to very small particle size for high resolution image development; they have good cohesivity and resist toner offset; they are fusible at low temperatures; and, in preferred embodiments, are capable of forming transparent color images.
REFERENCES:
patent: 4140644 (1979-02-01), Sandhu et al.
patent: 4217440 (1980-08-01), Barkey
patent: 4388395 (1983-06-01), Tsubuko et al.
patent: 4579803 (1986-04-01), Kato et al.
patent: 4645802 (1987-02-01), Jackson et al.
patent: 4686166 (1987-08-01), Kumagai et al.
Derwent Abstract 75309E/36 (JP007939, published Jul. 30, 1982).
Abstract of Japanese Kokai 59-204051, published Nov. 19, 1984 (from Patent Abstract of Japan).
DeMejo Lawrence P.
Santilli Domenic
Wilson John C.
Eastman Kodak Company
Lindeman Jeffrey A.
Martin Roland E.
Wiese Bernard D.
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